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A year of NDVI (Normalized Difference Vegetation Index) data of areas in Maryland on both sides of the Chesapeake Bay. The Patuxent River enters the Bay on the left and Taylors Island and the Blackwater National Wildlife Refuge on the right. In this visualization, red is bare soil and green indicates healthy, growing vegetation. The animation runs from January 1 to December 30, 2016.

USDA Uses HLS, an SNWG solution, Operationally to Detect Cover Crop Termination in the Chesapeake Bay Region

Satellite Needs Working Group (SNWG) solutions, such as Harmonized Landsat and Sentinel-2 (HLS), assist agencies with their existing workflows and decision-making processes by creating actionable science.

Data in Action

Jan. 22, 2025

A segment of an image of ASTER registered radiance data over Guatemala on January 8, 2018

NASA Begins Final ASTER Data Processing Campaign

The final processing of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data will make its archive more accessible to users.

Feature Article

Jan. 21, 2025

This image shows nitrogen dioxide concentrations across the United States, averaged over 2021. The data were derived from the Aura satellite's Ozone Monitoring Instrument (OMI). Lower levels of gas are colored shades of blue and higher concentrations are depicted in shades from white, red to black.

HAQAST Showcase 2025

NASA's Health and Air Quality Applied Sciences Team (HAQAST) Showcase connects public health experts and air quality managers with NASA satellite data and products. This year's hybrid Showcase takes place on January 28, 2025.

Event

Jan. 21, 2025

A visualization of COWVR wind speed and direction data during a bomb cyclone in November 2024.

COWVR and TEMPEST V10 Datasets Available in First Public Release

The Compact Ocean Wind Vector Radiometer (COWVR) and Temporal Experiment for Storms and Tropical Systems (TEMPEST) datasets are the first from the Space Test Program - Houston 8 (STP-H8) mission that aims to test low-cost, light-weight instruments designed for weather applications.

News

Jan. 17, 2025

False-color corrected reflectance image of the Palisades and Eaton Fires in Los Angeles, California on 12 January 2025 from the MSI instrument aboard the Sentinel-2A satellite

The Palisades and Eaton Fires, Los Angeles, California

Image captured on Jan 12, 2025, by the MSI instrument aboard ESA's Sentinel-2A platform.

Worldview Image of the Week

Jan. 17, 2025

Icebergs circulate in the South Atlantic Ocean currents near the island of South Georgia. Around them, phytoplankton is blooming, creating large green-tinted swirls in this NASA Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) Ocean Color Instrument (OCI) acquired on January 5, 2025.

Discover the Help Hub for Ocean Color Learning Resources

The Help Hub hosted by NASA's Ocean Biology Distributed Active Archive Center (OB.DAAC) has been updated with new learning resources for processing ocean color satellite data, working with Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) data, and more.

News

Jan. 15, 2025

ESA-NASA International Workshop on AI Foundation Model for EO

Submit your abstract for a workshop hosted by NASA and ESA (European Space Agency) focused on the opportunities and challenges of integrating foundation models into the Earth observation (EO) and Earth science ecosystems. The abstract submission deadline is January 31, 2025.

Event

Jan. 14, 2025

This rectangular image shows the location of satellite-based fire detection targets overlaid on visible imagery of the Los Angeles area landscape. In the center of the image over Pacific Palisades, CA, are nearly 30 pink, light purple, and purple squares showing the location of suspected fires.

Why Do Fires on NASA's Maps Sometimes Look Bigger Than They Really Are?

Satellite-based maps offer quick first alerts and approximate locations of potential wildfires that are then precisely tracked and fought by teams on the ground.

Feature Article

Jan. 13, 2025

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News

USDA Uses HLS, an SNWG solution, Operationally to Detect Cover Crop Termination in the Chesapeake Bay Region

NASA Begins Final ASTER Data Processing Campaign

HAQAST Showcase 2025

COWVR and TEMPEST V10 Datasets Available in First Public Release

The Palisades and Eaton Fires, Los Angeles, California

Discover the Help Hub for Ocean Color Learning Resources

ESA-NASA International Workshop on AI Foundation Model for EO

Why Do Fires on NASA's Maps Sometimes Look Bigger Than They Really Are?

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